Motec m142 ecu on a mazdaspeed?

Discussion in 'Mazdaspeed 3 Build Diaries' started by Atvfreek, Oct 3, 2019.

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  1. _Mazdarati

    _Mazdarati I just want my car back Greenie Member

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    It would be impossible to squeeze out DI headroom as the limitation is a characteristic of the injector itself, nothing software related. It has tables to rev to the moon as far as I know and possibly has the ability to do a true flex fuel, but that would be a question for him.

    Plus, you can just delete SWAS with unplugging the sensor, or you can get creative and put a switch inline with it.
     
    _Mazdarati, via a mobile device, Oct 9, 2019
    #21
  2. Mauro_Penguin

    Mauro_Penguin Punk in Drublic. #BlackLivesMatter Motorhead Platinum Member

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    No clue, I'm just really hopeful that there is a friggin genie in that little black box that will grant me wishes.
     
    Mauro_Penguin, via a mobile device, Oct 9, 2019
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  3. Mauro_Penguin

    Mauro_Penguin Punk in Drublic. #BlackLivesMatter Motorhead Platinum Member

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    I'm aware. I have a switch already. A software fix that actually works would be nice for reasons....
     
    Mauro_Penguin, via a mobile device, Oct 9, 2019
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  4. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    Unplugging swas in a pu also turns off the power steering
     
    Easter Bunny, via a mobile device, Oct 9, 2019
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  5. Enki

    Enki Motorhead Platinum Member

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    If my understanding of how our cars operate the injectors is correct, there's no way to get around the limitations of spark and cam timing and thus, most people shouldn't be going over a measured 100% IDC for that reason. People with aftermarket cams that have a later close time are even worse off than those with stock cams.
     
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  6. Lumberjack

    Lumberjack Greenie N00B Member

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    You can run just about any sensor you can imagine with the M142, your only limitation will be how many due to the spare inputs/outputs available to you.

    99% of setups on this platform wont make efficient power to 9k rpm anyways, even with my setup and Justin's power still starts tapering and falling off around 8500 give or take.

    You can control anything you want, 5/6th port, PI, nitrous, traction control, rolling anti lag etc.
     
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  7. Enki

    Enki Motorhead Platinum Member

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    1% reporting in.
    If you really want RPM you need to do a lot to make it feasible.

    Edit:
    With more money you can go even higher, but you'd probably have to get rid of DI altogether to get there. I don't think the HPFP can reliably handle much more than I'm already hitting (12.3k Hz) but stock internals would help.
     
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  8. Mauro_Penguin

    Mauro_Penguin Punk in Drublic. #BlackLivesMatter Motorhead Platinum Member

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    @Lumberjack

    So with such high possibilities with this unit, what would a shop tune for such a detailed system run? Just asking for ballpark, I'm not holding any to this since I'm sure tuning these things will require more time than what Cobb or Versatune offer.
     
    Mauro_Penguin, via a mobile device, Oct 21, 2019
    #28
  9. Lumberjack

    Lumberjack Greenie N00B Member

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    Sorry for the late reply to this.

    The retail pricing on this plug and play package will be $6,895 which includes the Motec Hardware, firmware (required), harness, CAN LTC and wideband sensor (required).

    The firmware is basically a base map for a bone stock Mazdaspeed as this is what it was developed around. Don’t quote me for sure, but a tune for this would be between about $750-1k give or take.
     
    Lumberjack, via an iPhone, Jan 10, 2020
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  10. Enki

    Enki Motorhead Platinum Member

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    Could you self tune?
     
  11. Enki

    Enki Motorhead Platinum Member

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    @Lumberjack Yo, self tuning possible at all, or is the tuning software package like another $3k
     
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  12. Enki

    Enki Motorhead Platinum Member

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    Gonna go out on a limb and say self tuning isn't possible with this; what a shame and a waste.
     
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  13. _Mazdarati

    _Mazdarati I just want my car back Greenie Member

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    Pretty sure it tunes just like an Accessport tune does (logs and then adjustments)? Freektune is able to do tunes I am fairly certain, and probably the only one with the ability besides Motec
     
  14. Lumberjack

    Lumberjack Greenie N00B Member

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    Self tuning is 100% possible. The firmware included on the ECU is what you tune with, you just have to download the M1 Tune software from MoTec's website. You cannot purchase a "blank" ecu from MoTec, you have to purchase a firmware with it. When you purchase the Mazdaspeed PNP setup it comes with a base map that will run a stock Mazdaspeed just fine. It will take you quite some time to learn the navigation, the tables and the severe complexity of the firmware and the tables, but yes you can 100% tune yourself. However, I do not recommend it as it is an entire different ball game compare to Accesstuner. It's not for the faint of heart by any means. I've attached a picture of the M1 Tune Software and what the base map provided in the Mazda specific firmware looks like @Enki

    upload_2020-11-1_17-45-1.png
     
    Last edited: Nov 1, 2020
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